Catharanthus roseus

Plant type: annual
Height: 6- 12 inches
Cultural Requirements: drought tolerant, hates cold and wet conditions. full sun
Leaves: opposite, simple leaves
Disease and Insects: fungal growth
Hardiness: zones 9- 11
spacing: 6-9 inches

http://usviany.files.wordpress.com/2008/06/catharanthus_roseus_211.jpg